/Engine/Source/Runtime/Engine/Public/FXSystem.h
Notification from the renderer that it is about to draw FX belonging to this system.
void PreRender ( [FRDGBuilder](API\Runtime\RenderCore\FRDGBuilder) & GraphBuilder, TConstStridedView< [FSceneView](API\Runtime\Engine\FSceneView) > Views, FSceneUniformBuffer & SceneUniformBuffer, bool bAllowGPUParticleUpdate )